Roll SwiftShader from d3cc7d7ac0c3 to 9c16e141823e (3 revisions)

https://swiftshader.googlesource.com/SwiftShader.git/+log/d3cc7d7ac0c3..9c16e141823e

2022-04-06 capn@google.com Only build WSI support for XCB surfaces when xcb.h is found
2022-04-06 capn@google.com Use 'discard' to denote terminated or demoted invocations
2022-04-06 swiftshader.regress@gmail.com Regres: Update test lists @ d3cc7d7a

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/swiftshader-dawn-autoroll
Please CC rharrison@google.com on the revert to ensure that a human
is aware of the problem.

To file a bug in SwiftShader: https://bugs.chromium.org/p/swiftshader/issues/entry
To file a bug in Dawn: https://bugs.chromium.org/p/dawn/issues/entry

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

Bug: None
Tbr: rharrison@google.com
Change-Id: I55111b565c74bc9f7a5ba159ca1c9ff362a1d10d
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/85904
Bot-Commit: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>

DEPS

@@ -138,7 +138,7 @@ deps = {
   },
 
   'third_party/swiftshader': {
-    'url': '{swiftshader_git}/SwiftShader@d3cc7d7ac0c364be2ef445347c1cc1f22722f099',
+    'url': '{swiftshader_git}/SwiftShader@9c16e141823e93c2d6ad05b94165cc18ffda6ffe',
     'condition': 'dawn_standalone',
   },